1 import Foundation
 2 
 3 enum Validate {
 4     case email(_: String)       // 邮箱
 5     case phoneNum(_: String)    // 手机
 6     case carNum(_: String)      // 车牌号
 7     case username(_: String)    // 登录名
 8     case password(_: String)    // 密码
 9     case nickname(_: String)    // 昵称
10     case URL(_: String)         // 网址
11     case IP(_: String)          // ip
12     case idCard(_: String)      // 身份证号
13     case numbers(_: String)     // 只包含数字
14     case lettersAndNumbers(_: String) // 只包含字母和数字
15     case chinese(_: String)     // 中文
16     
17     var isRight: Bool {
18         var predicateStr:String!
19         var currObject:String!
20         switch self {
21         case let .email(str):
22             predicateStr = "^([a-z0-9_\\.-]+)@([\\da-z\\.-]+)\\.([a-z\\.]{2,6})$"
23             currObject = str
24         case let .phoneNum(str):
25             predicateStr = "^1(3[4-9]|4[7]|5[0-27-9]|7[08]|8[2-478])\\d{8}$"            currObject = str
26         case let .carNum(str):
27             predicateStr = "^[A-Za-z]{1}[A-Za-z_0-9]{5}$"
28             currObject = str
29         case let .username(str):
30             predicateStr = "^[A-Za-z0-9]{6,20}+$"
31             currObject = str
32         case let .password(str):
33             predicateStr = "^[a-zA-Z0-9]{6,12}+$"
34             currObject = str
35         case let .nickname(str):
36             predicateStr = "^[\\u4e00-\\u9fa5]{4,8}$"
37             currObject = str
38         case let .URL(str):
39             predicateStr = "^(https?:\\/\\/)?([\\da-z\\.-]+)\\.([a-z\\.]{2,6})([\\/\\w \\.-]*)*\\/?$"
40             currObject = str
41         case let .IP(str):
42             predicateStr = "^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$"
43             currObject = str
44         case let .idCard(str):
45             predicateStr = "(^[1-9]\\d{5}(18|19|([23]\\d))\\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\\d{3}[0-9Xx]$)|(^[1-9]\\d{5}\\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\\d{2}$)"
46             currObject = str
47         case let .numbers(str):
48             predicateStr = "^[0-9]+$"
49             currObject = str
50         case let .lettersAndNumbers(str):
51             predicateStr = "^[a-zA-Z0-9]{1,30}+$"
52             currObject = str
53         case let .chinese(str):
54             predicateStr = "^[\\u4e00-\\u9fa5]{0,100}$"
55             currObject = str
56         }
57         
58         let predicate =  NSPredicate(format: "SELF MATCHES %@" ,predicateStr)
59         return predicate.evaluate(with: currObject)
60     }
61 }